How to make a jar file "executable"

I have an .exe file that I need to use to install a program. It extracts the files to a .jar file. When I use peazip or 7zip to extract all the files from the jar file, it just extracts a bunch of files but never installs the program. I tried it on another computer and it extracted the file to the same .jar file using 7zip, but the properties say "executable jar file". If i double click this file, it installs correctly. I tried copying the "executable jar file" from their computer to mine, but on mine it just says "jar file", not an executable and it won't install. How do I make this file executable on my computer?

I am not sure as to why there would be a distinction between JAR files either; and still, it sounds like you just want a way to run the JAR file, right? Well, here are a couple solutions, and the linked pages also explain a bit as to why this may be happening. In short, I expect it is a file association issue, and both of the following freeware applications help solve the issue in different way.
'Hope this helps! God bless! ^_^

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